CN112442904B - Polyurethane synthetic leather for silky suede sofa furniture and preparation method thereof - Google Patents
Polyurethane synthetic leather for silky suede sofa furniture and preparation method thereof Download PDFInfo
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
- D06N3/145—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes two or more layers of polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0061—Organic fillers or organic fibrous fillers, e.g. ground leather waste, wood bark, cork powder, vegetable flour; Other organic compounding ingredients; Post-treatment with organic compounds
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/007—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by mechanical or physical treatments
- D06N3/0077—Embossing; Pressing of the surface; Tumbling and crumbling; Cracking; Cooling; Heating, e.g. mirror finish
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0095—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by inversion technique; by transfer processes
- D06N3/0097—Release surface, e.g. separation sheets; Silicone papers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/108—Slipping, anti-blocking, low friction
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention discloses polyurethane synthetic leather for a silky suede sofa furniture and a preparation method thereof, wherein the polyurethane synthetic leather sequentially comprises a polyurethane surface layer, a middle layer, an adhesive layer and a base cloth layer from top to bottom; the polyurethane surface layer is prepared by coating polyurethane slurry on the surface of the velvet-feel release paper and drying the polyurethane slurry, wherein the polyurethane slurry is prepared from the following components in parts by weight: 100 parts of carbon-containing resin, 70-90 parts of solvent, 5-6 parts of organic silicone oil, 4-5 parts of melamine curing agent, 0.15-0.2 part of accelerator and 15-18 parts of color paste. The polyurethane synthetic leather produced by the invention has the advantages of tender and smooth surface, soft hand feeling and leather suede effect; the invention adopts the full dry method to produce polyurethane synthetic leather, and has the advantages of one-step molding, simple and efficient production and short preparation period. In addition, the polyurethane synthetic leather for the silky suede sofa furniture has low cost relative to leather, and is ecological and environment-friendly.
Description
Technical Field
The invention belongs to the technical field of polyurethane synthetic leather manufacturing, and particularly relates to polyurethane synthetic leather for a smooth suede sofa furniture and a preparation method thereof.
Background
Along with the continuous improvement of living standard, the comfort requirements of people on sofa furniture materials are higher and higher. Although the natural leather velvet product has the advantages of fine and comfortable leather surface, soft and plump hand feeling, good hygienic property and the like, the natural leather velvet product is expensive, the production environment is poor, the natural leather velvet product does not meet the national environmental protection requirements, raw materials are increasingly scarce, and the manufacturing cost is increasingly higher; although the physical and mechanical properties of the velvet polyurethane synthetic leather of the traditional technology are superior to those of natural leather, the finished product has poor surface touch feeling, rough leather surface, insufficient smoothness and tenderness, poor texture and insufficient plumpness in hand feeling.
Under the situation, the polyurethane synthetic leather material with silky suede touch, soft and plump hand feeling and strong skin-friendly feel is researched and developed to meet the requirements of high-level living of customers.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims at providing polyurethane synthetic leather for a silky suede sofa furniture, which sequentially comprises a polyurethane surface layer, a middle layer, an adhesive layer and a base cloth layer from top to bottom; the polyurethane surface layer is prepared by coating polyurethane slurry on the surface of the velvet-feel release paper and drying the polyurethane slurry, wherein the polyurethane slurry is prepared from the following components in parts by weight:
the preparation method of the polyurethane slurry comprises the following steps: adding the carbon-containing resin and the solvent into a reaction kettle according to the proportion, and stirring at a constant speed to obtain a kettle material; sequentially adding the organic silicone oil, the accelerator and the color paste according to the proportion, stirring at a high speed, and fully mixing to prepare slurry to be reacted; finally, the melamine curing agent is added according to the proportion, and the polyurethane slurry is obtained after full stirring.
Wherein: the polycarbonate resin and melamine curing agent in the slurry to be reacted can form an alkoxy group (more than N-CH) mainly containing a functional group under the high temperature condition 2 OR), hydroxymethylene (> N-CH 2 OH), (amino-NH) 2 ) Imino (> NH), melamine-melamine ether linkage > N-CH 2 OCH 2 Melamine resin with N <. These functional groups, under the action of the accelerator (providing an acidic environment), can undergo the following self-crosslinking reactions:
＞N-CH 2 OH+＞NH→＞NCH 2 N＜+H 2 O
＞N-CH 2 OH+HOCH 2 N＜→＞N-CH 2 OCH 2 N＜+H 2 O
＞N-CH 2 OH+HOCH 2 N＜→＞NCH 2 N＜+HCHO+H 2 O
the reaction can be continuously carried out under the acidic condition, so that the leather surface is formed into a stable and compact carbon chain structure. The structure can provide a smooth touch and stable physical and mechanical properties.
Further, the middle layer is prepared from middle layer slurry, and the middle layer slurry is prepared from the following components in parts by weight:
further, the bonding layer is prepared from bonding layer slurry, and the bonding layer slurry is prepared from the following components in parts by weight:
the viscosity modifier is butanone.
The invention also provides a preparation method of the polyurethane synthetic leather for the silky suede sofa furniture, which comprises the following steps:
(1) Uniformly coating a layer of polyurethane slurry on the surface of the velvet-feel release paper, and drying to obtain a surface layer; further, the temperature of the drying is 120-130 ℃ and the time is 3-5min.
(2) Coating an intermediate layer slurry on the surface of the surface layer, and drying to obtain an intermediate layer; further, the temperature of the drying is 125-135 ℃ and the time is 5-6min.
(3) Coating an adhesive layer slurry on the surface of the middle layer, bonding with the base cloth in a state of being dried to be semi-dry, continuously drying and curing, and stripping off release paper to obtain a finished product, namely the polyurethane synthetic leather for the silky suede sofa furniture. Further, the temperature of the drying is 90-100 ℃ and the time is 1-2min; the temperature of the drying and curing is 120-130 ℃ and the time is 5-6min.
Compared with the prior art, the invention has the beneficial effects that:
1. the polyurethane slurry for preparing the polyurethane surface layer is prepared by a crosslinking reaction of the carbon-containing resin and the melamine curing agent, and the reaction can form a stable and compact carbon chain structure, so that the product has smooth touch feeling and stable physical and mechanical properties; in addition, the silicone oil is added in the formula, so that the silking effect is more obvious.
2. According to the invention, the polyurethane slurry is coated on the surface of the velvet-sense release paper, and after the velvet-sense release paper is peeled off, the product surface can form leather frosted patterns, so that the leather frosted patterns are soft in hand feeling and have leather velvet effect;
3. the preparation method of the traditional synthetic leather product comprises the steps of preparing wet bass from base cloth through wet polyurethane material treatment (through a DMF replacement method), and preparing the required synthetic leather through a dry process (a release paper transfer film method); the steps in the invention are all dry process of the release paper transfer film, the release paper transfer film is not treated by wet polyurethane, and the release paper transfer film is formed at one time, and has the advantages of simple and efficient production, short preparation period, low cost and good physical and mechanical properties of the obtained synthetic leather product.
3. The silky suede furniture leather hand produced by the invention has low cost relative to leather, and is ecological and environment-friendly.
Detailed Description
The invention will be further illustrated with reference to examples. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The types and suppliers of the reagents used in this example are as follows:
the manufacturer of the carbon-containing resin is a new material Co-fertilizer polyurethane Co-Ltd, and the model is LT-8045; the manufacturer of the organic silicone oil is Dongguan Tianyu chemical industry Co., ltd, and the model is PMX-200; the melamine curing agent is manufactured by Suzhou Shengmu chemical Co., ltd, and the model is JT-75; the manufacturer of the accelerator is the Suzhou Shengju chemical industry Co., ltd, and the model is JF-320; the manufacturer of the polyether resin is a new material company of synthetic fertilizer and polyurethane, and the model is ST-8630; the manufacturer of the leveling agent is the German Pick company, and the model is BYK-9565; the manufacturer of the wear-resistant additive is the German Pick company, and the model is BYK-3238; the manufacturer of the polyol is BASF a, which is a special product of BASF polyurethane (chinese) limited; the manufacturer of the inhibition catalyst is a new material Co-fertilizer Anli polyurethane Co., ltd, and the model is AL-C01; the manufacturer of the isocyanate is BASF B, which is the special product of BASF polyurethane (china); the manufacturer of the microfiber base cloth is Shanghai Huafeng microfiber science and technology Co.
The above reagents are merely illustrative of the sources and ingredients of the reagents used in the experiments of the invention and are well disclosed and do not represent the inability to practice the invention using other reagents of the same type or provided by other suppliers.
Example 1
(1) Selecting velvet-feel release paper with the code of H-969 produced by Wenzhou macro and technology limited company, uniformly coating polyurethane surface layer slurry on the surface of the velvet-feel release paper, drying in a 130 ℃ oven for 4min, and drying to obtain a surface layer; the surface layer has a scanning gram weight of 140 g/square meter.
The polyurethane surface layer slurry is prepared from the following components in parts by weight:
the preparation method of the polyurethane slurry comprises the following steps: adding polycarbonate resin LT-8045 and solvent Dimethylformamide (DMF) into a reaction kettle in proportion, and stirring at a constant speed to obtain a kettle material; then sequentially adding organic silicone oil PMX-200, an accelerant JF-320 and color paste according to the proportion, stirring at a high speed, and fully mixing to prepare slurry to be reacted; finally adding melamine curing agent JT-75 according to the proportion, and fully stirring to obtain the polyurethane surface layer slurry. The preparation of the top layer slurry in the subsequent examples was the same as described herein, except that the amounts of the components were different.
(2) Uniformly coating the surface layer obtained in the step (1) with intermediate layer slurry, and then drying in a 130 ℃ oven for 5min to obtain an intermediate layer after drying; the interlayer has a scanning grammage of 160 g/square meter.
The middle layer slurry is prepared from the following components in parts by weight:
(3) Uniformly coating adhesive layer slurry on the surface of the intermediate layer obtained in the step (2), transferring the intermediate layer to a 90 ℃ oven for drying for 1min to form a semi-dry state, attaching microfiber base cloth, transferring the intermediate layer to a 120 ℃ oven for curing for 6min at high temperature, and stripping from release paper to obtain a finished product; wherein the bonding layer has a grammage of 240 g/square meter.
The adhesive layer slurry is prepared from the following components in parts by weight: .
Example 2
(1) Selecting velvet-feeling release paper with code number of American SAPPI release paper company of America as American 498, uniformly coating polyurethane surface layer slurry on the surface of the velvet-feeling release paper, drying in a 130 ℃ oven for 4.5min, and drying to obtain a surface layer; the scanning gram weight of the surface layer is 160 g/square meter.
The polyurethane surface layer slurry is prepared from the following components in parts by weight:
(2) Uniformly coating the surface layer obtained in the step (1) with intermediate layer slurry, and then drying in a 130 ℃ oven for 6min to obtain an intermediate layer after drying; the scanning gram weight of the middle layer is 180 g/square meter.
The middle layer slurry is prepared from the following components in parts by weight:
(3) Uniformly coating adhesive layer slurry on the surface of the intermediate layer obtained in the step (2), putting the coated slurry into a 100 ℃ oven for drying for 1.5min to form a semi-dry state, attaching a microfiber base cloth, putting the microfiber base cloth into a 130 ℃ oven for curing for 6min at high temperature, and stripping from release paper to obtain a finished product; wherein the adhesive layer has a scanning grammage of 260 g/square meter.
The adhesive layer slurry is prepared from the following components in parts by weight:
the polyurethane synthetic leather for the silky suede sofa furniture produced by the embodiment is tender and soft, has good skin-friendly feel and is ecological and environment-friendly; in addition, the wear resistance of the Weisbox with physical and mechanical properties can reach 10 ten thousand times without breaking; meets the requirements of no pulverization and no cracking of the constant temperature and humidity 70 ℃ and 95% humidity 7 weeks leather surface.
Description: the skin-friendly sense is subjective feeling through direct contact of skin, and can not be detected by an instrument.
Comparative example:
(1) Selecting velvet-feel release paper with the code of H-969 produced by Wenzhou macro and technology company, uniformly coating polyurethane surface layer slurry on the surface of the velvet-feel release paper, drying in a 130 ℃ oven for 4.5min, and drying to obtain a surface layer; the scanning gram weight of the surface layer is 160 g/square meter.
The polyurethane surface layer slurry is prepared from the following components in parts by weight:
(2) Uniformly coating the surface layer obtained in the step (1) with intermediate layer slurry, and then drying in a 130 ℃ oven for 6min to obtain an intermediate layer after drying; the scanning gram weight of the middle layer is 180 g/square meter.
The middle layer slurry is prepared from the following components in parts by weight:
(3) Uniformly coating adhesive layer slurry on the surface of the intermediate layer obtained in the step (2), putting the coated slurry into a 100 ℃ oven for drying for 1.5min to form a semi-dry state, attaching a microfiber base cloth, putting the microfiber base cloth into a 130 ℃ oven for curing for 6min at high temperature, and stripping from release paper to obtain a finished product; wherein the adhesive layer has a scanning grammage of 260 g/square meter.
The adhesive layer slurry is prepared from the following components in parts by weight:
in the comparative example, since the polyurethane topcoat slurry was unable to produce self-crosslinking reaction, a dense polyurethane coating was not formed, so that the obtained synthetic leather had a rough surface, no silkiness, poor skin feel, and poor mechanical properties.
The above embodiments are not limited to the scope of the present invention, and all modifications or variations based on the basic idea of the present invention are within the scope of the present invention.
Claims (8)
1. The utility model provides a smooth matte polyurethane synthetic leather for sofa furniture which characterized in that: the polyurethane surface layer, the middle layer, the adhesive layer and the base cloth layer are sequentially included from top to bottom; the polyurethane surface layer is prepared by coating polyurethane slurry on the surface of the velvet-feel release paper and drying the polyurethane slurry, wherein the polyurethane slurry is prepared from the following components in parts by weight:
100 parts of a carbon-rich resin;
70-90 parts of a solvent;
5-6 parts of organic silicone oil;
4-5 parts of melamine curing agent;
0.15-0.2 part of accelerator;
15-18 parts of color paste;
the carbon polymer resin is LT-8045; the melamine curing agent is JT-75; the promoter is JF-320;
the preparation method of the polyurethane synthetic leather for the silky suede sofa furniture comprises the following steps:
(1) Uniformly coating a layer of polyurethane slurry on the surface of the velvet-feel release paper, and drying to obtain a surface layer; the temperature of the drying is 120-130 ℃ and the time is 3-5min;
(2) Coating an intermediate layer slurry on the surface of the surface layer, and drying to obtain an intermediate layer;
(3) Coating an adhesive layer slurry on the surface of the middle layer, bonding with the base cloth in a state of being dried to be semi-dry, continuously drying and curing, and stripping off release paper to obtain a finished product, namely the polyurethane synthetic leather for the silky suede sofa furniture.
2. The polyurethane synthetic leather for a silky suede sofa furniture according to claim 1, wherein: the middle layer is prepared from the middle layer slurry, and the middle layer slurry is prepared from the following components in parts by weight:
90 parts of polyether resin;
70-90 parts of a solvent;
0.2 part of leveling agent;
2-4 parts of wear-resistant auxiliary agent;
15-18 parts of color paste.
3. The polyurethane synthetic leather for a silky suede sofa furniture according to claim 1, wherein: the bonding layer is prepared from the bonding layer slurry, and the bonding layer slurry is prepared from the following components in parts by weight:
100-110 parts of polyol;
0.03-0.08 parts of inhibition catalyst;
20-30 parts of aluminum hydroxide;
3-6 parts of viscosity modifier;
40-45 parts of isocyanate.
4. The polyurethane synthetic leather for a silky suede sofa furniture according to claim 3, wherein: the viscosity modifier is butanone.
5. The method for preparing polyurethane synthetic leather for a silky suede sofa furniture according to any one of claims 1 to 4, which is characterized in that: the method comprises the following steps:
(1) Uniformly coating a layer of polyurethane slurry on the surface of the velvet-feel release paper, and drying to obtain a surface layer;
(2) Coating an intermediate layer slurry on the surface of the surface layer, and drying to obtain an intermediate layer;
(3) Coating an adhesive layer slurry on the surface of the middle layer, bonding with the base cloth in a state of being dried to be semi-dry, continuously drying and curing, and stripping off release paper to obtain a finished product, namely the polyurethane synthetic leather for the silky suede sofa furniture.
6. The method of manufacturing according to claim 5, wherein: in the step (1), the temperature of the drying is 120-130 ℃ and the time is 3-5min.
7. The method of manufacturing according to claim 5, wherein: in the step (2), the temperature of the drying is 125-135 ℃ and the time is 5-6min.
8. The method of manufacturing according to claim 5, wherein: in the step (3), the temperature of the drying is 90-100 ℃ and the time is 1-2min; the temperature of the drying and curing is 120-130 ℃ and the time is 5-6min.
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| CN107587358A (en) * | 2017-09-11 | 2018-01-16 | 华伦皮塑（苏州）有限公司 | A kind of frosted velvet breathing leather manufacture method |
| CN109338733A (en) * | 2018-10-09 | 2019-02-15 | 安徽安利材料科技股份有限公司 | A kind of preparation method of polyurethane high molecule elastomer composite mesh material |
| CN110485172A (en) * | 2019-08-08 | 2019-11-22 | 安徽安利材料科技股份有限公司 | One kind having the preparation method of " lotus leaf effect " automatically cleaning Synthetic Leather |
| CN110952338A (en) * | 2019-11-15 | 2020-04-03 | 清远市齐力合成革有限公司 | Super-simulation leather, cow and sheep crystal transparent synthetic leather fabric and preparation method thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107313263A (en) * | 2017-08-18 | 2017-11-03 | 安徽安利材料科技股份有限公司 | The preparation method of organic solvent-resistant polyurethane synthetic leather for sofa furniture |
| CN107587358A (en) * | 2017-09-11 | 2018-01-16 | 华伦皮塑（苏州）有限公司 | A kind of frosted velvet breathing leather manufacture method |
| CN109338733A (en) * | 2018-10-09 | 2019-02-15 | 安徽安利材料科技股份有限公司 | A kind of preparation method of polyurethane high molecule elastomer composite mesh material |
| CN110485172A (en) * | 2019-08-08 | 2019-11-22 | 安徽安利材料科技股份有限公司 | One kind having the preparation method of " lotus leaf effect " automatically cleaning Synthetic Leather |
| CN110952338A (en) * | 2019-11-15 | 2020-04-03 | 清远市齐力合成革有限公司 | Super-simulation leather, cow and sheep crystal transparent synthetic leather fabric and preparation method thereof |
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